Chapter 38: Reforging the Chakra Seed
In the deepest part of the cave, Izumo sat cross-legged, his posture as straight and steady as a towering pine tree. The moment his fingertips formed the hand seals, his master-level Chakra Extraction Technique surged into motion, pushed all the way to its extreme limit.
The once-stagnant air inside the cave seemed to be stirred by an invisible force. Strand after strand of energy seeped into his body through the pores of his skin, gathering deep within his tanden and forming a swirling vortex of power.
As it spun, the energy grew purer and denser, releasing a faint, almost inaudible hum.
When the purification process reached its peak, his spiritual perception pierced through the walls of his tanden like a beam of light, catching an anomaly he had never noticed before—
A tiny point of light, floating quietly at the very center of his tanden.
That point wasn't a solid object, yet it emitted a constant, unique chakra fluctuation, like the most distant star in the night sky.
Every time new chakra was created, the physical and spiritual energy inside his body would automatically gather toward this point of light, completing their fusion and transformation around it. The entire process flowed so smoothly, as if it were obeying some fundamental law of nature.
"Is this… the Chakra Seed?" Izumo whispered in shock.
The reason he had never sensed it before was obvious. His mental strength and perceptive ability had only undergone a qualitative leap after he broke through to master-level chakra purification.
He immediately cast aside all distracting thoughts and focused every ounce of his awareness on that mysterious seed.
It was less than a micron in diameter, yet it acted as the very heart of the entire chakra system.
All refined chakra originated from this point. In battle, the chakra used to unleash ninjutsu without any need for manual fusion was drawn directly from this seed.
It was like an energy warehouse that never ran dry, supporting every extraordinary feat a ninja could perform.
"So that's how it works…" Izumo suddenly realized. "No wonder high-level ninja can fire off ninjutsu one after another in an instant. This seed isn't just a 'storage unit' for chakra—it's an incredibly efficient 'conversion engine.'"
As his understanding deepened, the cognitive inheritance carried by the master-level purification technique flooded his mind like a rising tide.
The Chakra Seed was the core that crystallized the very first time physical and spiritual energy fused perfectly. Once formed, it would remain in the tanden forever.
Every chakra refinement process afterward essentially relied on this seed's catalytic effect, allowing new energy to fuse rapidly, with an efficiency more than a hundred times greater than that first, original refinement.
The applications of chakra were far broader than what the ninja world currently understood.
With chakra, one could traverse space. With chakra, one could grant vitality to others. With chakra, one could even separate the soul from the body.
It could be said to be an all-powerful medium.
And yet, chakra also had limits that could not be broken.
It could not directly strengthen the fundamental attributes of the human body.
Chakra could enhance power by coating fists and legs, or accelerate wound healing—but it could not cause muscle fibers or bone density to undergo true, essential evolution.
More importantly, chakra could not extend one's lifespan.
In fact, ninja often lived shorter lives than ordinary people precisely because frequent chakra overuse caused premature cellular decline—like a battery being drained far beyond its limits, speeding up its total breakdown.
He also realized how deeply chakra was bound to the source of life itself.
The phenomenon of "dying from chakra exhaustion" wasn't simply a matter of running out of energy. In truth, when chakra was refined, physical energy was drawn from cellular metabolism.
Excessive chakra consumption was, at its core, the forced squeezing of cellular function. When the cells could no longer provide energy, life itself came to an end.
"The Sage of Six Paths…" Izumo murmured softly.
The Chakra Extraction Technique had been created and taught to humanity by the Sage of Six Paths. The form of this seed, the way it functioned—even the limitations built into it—had to carry traces of his original design.
Remembering the information that came with the master-level Chakra Extraction Technique, Izumo made his decision.
He would try it.
Without hesitation, his hands formed a special set of seals at a speed no ordinary person could ever achieve. He condensed his spiritual energy into an invisible blade, then, with extreme care, thrust it toward the microscopic seed at the center of his tanden.
The Chakra Seed had been fused with his tanden for so long that every single chakra pathway in his body instantly screamed in agony. It felt like thousands of steel needles stabbing into him all at once.
The energy value on the system panel plummeted straight down to zero.
Izumo clenched his teeth so hard he didn't even notice the blood seeping from the corner of his mouth.
Yes.
He was dismantling the Chakra Seed itself.
Relying on the fine, surgical-level precision of his master-tier chakra control, he forcibly guided the raging physical and spiritual energies to separate and settle apart.
He had no idea how much time passed.
When the final trace of fluctuation from the seed vanished, only two clearly divided streams of energy remained inside his tanden.
Pure physical energy looked like a milky-white liquid.
Spiritual energy turned into a pale-blue mist.
The two stood completely apart, showing not the slightest sign of resonance.
"Halfway there…" Izumo gasped, his breathing heavy.
His entire body was drenched in cold sweat, his clothes clinging tightly to his skin as if he had just been pulled out of water.
"Now… extract again."
Once more, he activated the master-level Chakra Extraction Technique.
This time, without the old seed acting as a catalyst, the fusion speed of physical and spiritual energy slowed to less than a tenth of what it had been before.
But every single strand of fusion felt unbelievably pure—free from any external rules, guided entirely by his own will.
As the union deepened, a point of light appeared once more at the center of his tanden.
But this time, it was nothing like the old Chakra Seed.
It radiated a gentle fluctuation that carried an overwhelming sense of power. Not only did it perfectly fuse physical and spiritual energy, it also faintly drew in extremely thin, incredibly pure particles of energy from the surrounding environment.
"…Natural Energy?"
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